@Cozmicray: That diagram that you attached is only reference to what I suggested people do if they want to lasercut Wally out of 5mm flatstock. Using two boards per side allows you to "countersink" with a laser. Note: I have never made a lasercut Wally. I just made it to help out others.

@Cozmicray: All that you say is correct including the need for instructions. Working on them but as you can imagine good instruction will take time. For now you can reference the STLs. Don't be shy about asking for an clarification during your build.